"I feel so fortunate to do my job. I love my job," she gushed. "I love singing. I love the way it feels."

Another one of Beyoncé's true loves is her husband, Jay-Z.

"I would not be the woman I am if I did not go home to that man," she said, adding that their relationship "just gives me such a foundation."

Beyonce, 31, gazes adoringly at her little 'un in the show - and talks for the first time about her agonising miscarriage before Blue Ivy was conceived.

In an image, leaked online, she is seen with her hair in braids holding Blue.

Beyonce co-directed the film which offers an inside look at her career and family life with Jay-Z.

The Grammy-winning star also opens up about her miscarriage, saying: "It was the saddest thing I've ever been through."

"My life is a journey. ... I had to go through my miscarriage, I believe I had to go through owning my company and managing myself ... ultimately your independence comes from knowing who you are and you being happy with yourself," she said.

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